CN209460447U - A kind of backlight module - Google Patents
A kind of backlight module Download PDFInfo
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- CN209460447U CN209460447U CN201920259123.5U CN201920259123U CN209460447U CN 209460447 U CN209460447 U CN 209460447U CN 201920259123 U CN201920259123 U CN 201920259123U CN 209460447 U CN209460447 U CN 209460447U
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- hole
- guide plate
- catoptric arrangement
- light guide
- light
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Abstract
The utility model discloses a kind of backlight module, and backlight module includes light source, light guide plate, iron frame, reflectance coating, diffusion barrier, bright enhancement film.Iron frame through-hole and cyclic annular positioning device are equipped at the top of the distance light end of iron frame, cyclic annular positioning device is arranged around iron frame inner side wall of through hole and extends to the top of iron frame, light guide plate corresponds to iron frame through-hole equipped with light guide plate through-hole, iron frame through-hole is overlapped with light guide plate through-hole, an accommodating chamber is formed between light guide plate through-hole and cyclic annular positioning device, light guide plate inner side wall of through hole is equipped with the first catoptric arrangement, corresponding first catoptric arrangement is equipped with the second catoptric arrangement in cyclic annular positioning device, first catoptric arrangement is equipped with a light inlet by close to sources side, first catoptric arrangement is equipped with light-emitting window far from light source side.The utility model enables light to be transmitted to the rear side of light guide plate through-hole by the first catoptric arrangement of setting and the second catoptric arrangement, improves the brightness on rear side of light guide plate through-hole, to improve the Luminescence Uniformity of entire backlight module, enhances visual effect.
Description
Technical field
The utility model relates to back light model setting technology field more particularly to a kind of backlight modules.
Background technique
As smart phone develops, to obtain bigger vision area range, higher screen accounting is obtained, mobile phone screen constantly adds
Mobile phone edge placement is arrived greatly.Since preposition pick-up lens, earpiece, the isostructural limitation of breath light improve and need accounting, before this
Cell phone back light source shorten length all to avoid camera position.
And the full frame effect for being unfavorable for mobile phone by shortening backlight length, therefore study by backlight corresponding position
One aperture is set to place camera, then mobile phone display screen can be lengthened to mobile phone edge, be designed to ultra-narrow frame or Rimless
Mobile phone, and then light guide plate also needs to do corresponding aperture setting, allows light to pass through hole and reaches camera.And it is opened on light guide plate
Hole, the light in light guide plate can not be transmitted directly to the opposite side of through-hole, cause side brightness of the through-hole far from light source inadequate, be formed dark
Area influences visual effect.Backlight module because setting through-hole structure is not easy to meet the requirements in optical visual effect, it is also necessary to logical
Hole carries out treatment of details.
Therefore, prior art Shortcomings need to improve.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of backlight module.
The technical solution of the utility model is as follows: a kind of backlight module, and backlight module includes light source, light guide plate, iron frame, anti-
Penetrate film, diffusion barrier, bright enhancement film.Iron frame through-hole and cyclic annular positioning device are equipped at the top of the distance light end of the iron frame, it is described cyclic annular fixed
Position device is arranged around the iron frame inner side wall of through hole and extends to the top of the iron frame, and the light guide plate corresponds to the iron frame
Through-hole is equipped with light guide plate through-hole, and the iron frame through-hole overlaps with the light guide plate through-hole, the light guide plate through-hole with it is described
An accommodating chamber is formed between cyclic annular positioning device.The light guide plate inner side wall of through hole is equipped with the first catoptric arrangement, described cyclic annular fixed
First catoptric arrangement is corresponded on the device of position equipped with the second catoptric arrangement.First catoptric arrangement is close to the light source side
Equipped with a light inlet, first catoptric arrangement is equipped with light-emitting window far from the light source side.
Further, the light guide plate through-hole is circular through hole, the arc length of the arc length of the light inlet and the light-emitting window
It is a quarter perimeter of the light guide plate through-hole.
Further, first catoptric arrangement be silvered reflective layer, first catoptric arrangement with a thickness of 5 μm of -15 μ
m。
Further, the cyclic annular positioning device includes one first positioning ring, and second catoptric arrangement is set to described the
For one positioning ring close to light guide plate inner side wall of through hole side, second catoptric arrangement is silvered reflective layer, and described second is anti-
Penetrate structure with a thickness of 5 μm -15 μm.
Further, first positioning ring is structure as a whole with the iron frame.
Further, the cyclic annular positioning device includes the second positioning ring, and second catoptric arrangement is one first glue
Frame, first glue frame wrap up the second positioning ring setting, and first glue frame is white.
Further, the cyclic annular positioning device includes the second positioning ring, and second catoptric arrangement includes the second glue
Frame and the silvered reflective layer being formed on the second glue frame side wall, second glue frame are wrapped up second positioning ring and are set
Set, second glue frame be black, the silvered reflective layer be set to second glue frame close to first catoptric arrangement this
Side, the silvered reflective layer with a thickness of 5 μm -15 μm.
Further, second positioning ring is structure as a whole with the iron frame.
Further, the iron frame through-hole is set to the distance light end top left side of the iron frame or the distance light end of the iron frame
The distance light end top center of top right side or the iron frame.
Further, the backlight module further include: reflectance coating, diffusion barrier and bright enhancement film, the ring-type positioning device are passed through
Wear the reflectance coating, diffusion barrier, bright enhancement film.
Using the above scheme, the utility model improves screen accounting, meets the demand of ultra-narrow frame or Rimless；Pass through
First catoptric arrangement and the second catoptric arrangement are set, keep light incoming from the light source side of light guide plate through-hole, in above-mentioned two reflection
It is transmitted to the rear side of light guide plate through-hole under the action of structure, the brightness on rear side of light guide plate through-hole is improved, to improve entire backlight
The Luminescence Uniformity of mould group enhances visual effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of an embodiment of the utility model backlight module；
Fig. 2 is the sectional view in Fig. 1 along B-B；
Fig. 3 is the light propagation schematic diagram of an embodiment of the utility model backlight module；
Fig. 4 is the structural schematic diagram of another embodiment of the utility model backlight module；
Fig. 5 is the light propagation schematic diagram of another embodiment of the utility model backlight module；
Fig. 6 is the structural schematic diagram of the another embodiment of the utility model backlight module；
Fig. 7 is the light propagation schematic diagram of the another embodiment of the utility model backlight module.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Fig. 1 to Fig. 7 is please referred to, the utility model provides a kind of backlight module, and backlight module 100 includes light source 1, light guide plate
2, iron frame 3, reflectance coating 4, diffusion barrier 5, bright enhancement film 6.The top at the distance light end 31 of the iron frame 3 is equipped with iron frame through-hole 32 and ring
Shape positioning device, the ring-type positioning device is arranged around 32 inner sidewall of iron frame through-hole and to the top of the iron frame 3
Extend.The ring-type positioning device runs through the reflectance coating 4, diffusion barrier 5 and bright enhancement film 6, shape on the outside of the ring-type positioning device
At the space for accommodating the structural members such as pick-up lens, earpiece, breath light.The corresponding iron frame through-hole 32 of the light guide plate 2 is equipped with
Light guide plate through-hole 21, the iron frame through-hole 32 are overlapped with the light guide plate through-hole 21, the light guide plate through-hole 21 with it is described
An accommodating chamber 7 is formed between cyclic annular positioning device.21 inner sidewall of light guide plate through-hole is equipped with the first catoptric arrangement 22, the ring
First catoptric arrangement 22 is corresponded in shape positioning device equipped with the second catoptric arrangement.Specifically, first described in the present embodiment
Catoptric arrangement 22 be silvered reflective layer, first catoptric arrangement 22 with a thickness of 5 μm -15 μm, preferably 10 μm.Described first is anti-
It penetrates structure 22 and is equipped with a light inlet 23 close to 1 side of light source, first catoptric arrangement 22 is set far from 1 side of light source
There is light-emitting window 24, specifically, light guide plate through-hole described in the present embodiment 21 is circular through hole, the arc length of the light inlet 23 and institute
The arc length for stating light-emitting window 24 is a quarter perimeter of the light guide plate through-hole 21.Light can pass through in the accommodating chamber 7
The rear side for being reflected into the light guide plate through-hole for crossing first catoptric arrangement 22 and second catoptric arrangement, to improve
The brightness of 21 rear side of light guide plate through-hole.The iron frame through-hole 32 be set to the iron frame 3 distance light end 31 top left side or
The top center at the distance light end 31 of the top right side or iron frame 3 at the distance light end 31 of the iron frame 3.Specifically, the present embodiment
Described in iron frame through-hole 32 be set to the iron frame 3 distance light end 31 top left side.
It please refers to Fig.1 to Fig.3, there are three types of design schemes for the ring-type positioning device.A wherein embodiment, it is described cyclic annular fixed
Position device includes one first positioning ring 9, and specifically, the first positioning ring 9 described in the present embodiment is integrated knot with the iron frame 3
Structure.Second catoptric arrangement 8 is set to first positioning ring 9 on the inner sidewall of the light guide plate through-hole 21.Specifically,
Second catoptric arrangement 8 be silvered reflective layer, second catoptric arrangement 8 with a thickness of 5 μm -15 μm, preferably 10 μm.At this time
Second catoptric arrangement 8 cooperates with first catoptric arrangement 22, and light is transmitted to the light guide plate through-hole 21
Rear side, so that the brightness of 21 rear side of light guide plate through-hole is improved, so that the entire backlight module light uniformity is improved, enhancing view
Feel effect.
Please referring to Fig. 4 and Fig. 5, in another embodiment, the ring-type positioning device includes the second positioning ring 10, and described the
Two catoptric arrangements 11 are one first glue frame, and first glue frame is wrapped up second positioning ring 10 and is arranged.Specifically, the present embodiment
In, second positioning ring 10 is structure as a whole with the iron frame 3.At this point, first glue frame is white, first glue frame
Itself can reflection light, so in the present embodiment, second catoptric arrangement 11 is first glue frame itself, this just keeps away
Exempt to increase reflecting layer in first glue frame.Second catoptric arrangement 11 (i.e. described first glue frame) and described the at this time
Light, is transmitted to the rear side of the light guide plate through-hole 21, to improve the light guide plate through-hole 21 by the cooperation of one catoptric arrangement 22
The brightness of rear side enhances visual effect to improve the uniformity of entire backlight module light.
Please referring to Fig. 6 and Fig. 7, in another embodiment, the ring-type positioning device includes the second positioning ring 10, and described the
Two catoptric arrangements 12 include the second glue frame 121 and the silvered reflective layer 122 being formed on 121 side wall of the second glue frame, institute
It states the second glue frame 121 and wraps up the setting of the second positioning ring 10.Specifically, in the present embodiment, second positioning ring 10 and institute
Iron frame 3 is stated to be structure as a whole.Second glue frame 121 is black, and second glue frame 121 of black is unable to reflected light in itself
Line, so the silvered reflective layer 122 is set to second glue frame 121 close to described this side of first catoptric arrangement 22.Tool
Body, in the present embodiment, the silvered reflective layer 122 with a thickness of 5 μm -15 μm, preferably 10 μm.The second reflection knot at this time
The silvered reflective layer 122 and first catoptric arrangement 22 on structure 12 cooperate, and light is transmitted to the light guide plate through-hole
21 rear side, so that the brightness of 21 rear side of light guide plate through-hole is improved, so that the brightness of entire backlight module is improved, enhancing view
Feel effect.
In conclusion the utility model improves screen accounting, the demand of ultra-narrow frame or Rimless is met；Pass through setting
First catoptric arrangement and the second catoptric arrangement keep light incoming from the light source side of light guide plate through-hole, in above-mentioned two catoptric arrangement
Under the action of be transmitted to the rear side of light guide plate through-hole, the brightness on rear side of light guide plate through-hole is improved, to improve entire backlight module
Luminescence Uniformity, enhance visual effect.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all practical at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the guarantor of the utility model within novel spirit and principle
Within the scope of shield.
Claims (10)
1. a kind of backlight module, backlight module includes light source, light guide plate, iron frame, reflectance coating, diffusion barrier, bright enhancement film, and feature exists
In equipped with iron frame through-hole and cyclic annular positioning device at the top of the distance light end of the iron frame, the ring-type positioning device surrounds the iron
The setting of frame inner side wall of through hole simultaneously extends to the top of the iron frame, and it is logical equipped with light guide plate that the light guide plate corresponds to the iron frame through-hole
Hole, the iron frame through-hole are overlapped with the light guide plate through-hole, between the light guide plate through-hole and the cyclic annular positioning device
An accommodating chamber is formed, the light guide plate inner side wall of through hole is equipped with the first catoptric arrangement, in the ring-type positioning device described in correspondence
First catoptric arrangement is equipped with the second catoptric arrangement, and first catoptric arrangement is equipped with a light inlet, institute close to the light source side
It states the first catoptric arrangement and is equipped with light-emitting window far from the light source side.
2. backlight module according to claim 1, which is characterized in that the light guide plate through-hole be circular through hole, it is described into
The arc length of optical port and the arc length of the light-emitting window are a quarter perimeter of the light guide plate through-hole.
3. backlight module according to claim 1, which is characterized in that first catoptric arrangement is silvered reflective layer, institute
State the first catoptric arrangement with a thickness of 5 μm -15 μm.
4. backlight module according to claim 1, which is characterized in that the ring-type positioning device includes one first positioning
Ring, it is anti-close to light guide plate inner side wall of through hole side, described second that second catoptric arrangement is set to first positioning ring
Penetrate structure be silvered reflective layer, second catoptric arrangement with a thickness of 5 μm -15 μm.
5. backlight module according to claim 4, which is characterized in that first positioning ring and the iron frame are integrated knot
Structure.
6. backlight module according to claim 1, which is characterized in that the ring-type positioning device includes the second positioning
Ring, second catoptric arrangement are one first glue frame, and first glue frame wraps up the second positioning ring setting, first glue
Frame is white.
7. backlight module according to claim 1, which is characterized in that the ring-type positioning device includes the second positioning
Ring, second catoptric arrangement includes the second glue frame and the silvered reflective layer that is formed on the second glue frame side wall, described
Second glue frame wraps up the second positioning ring setting, and second glue frame is black, and the silvered reflective layer is set to described second
Glue frame close to described this side of first catoptric arrangement, the silvered reflective layer with a thickness of 5 μm -15 μm.
8. backlight module according to claim 6 or 7, which is characterized in that second positioning ring is one with the iron frame
Body structure.
9. backlight module according to claim 1, which is characterized in that the iron frame through-hole is set to the distance light end of the iron frame
The distance light end top center of the distance light end top right side or the iron frame of top left side or the iron frame.
10. backlight module according to claim 1, which is characterized in that further include: reflectance coating, diffusion barrier and bright enhancement film,
The ring-type positioning device runs through the reflectance coating, diffusion barrier, bright enhancement film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920259123.5U CN209460447U (en) | 2019-02-28 | 2019-02-28 | A kind of backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920259123.5U CN209460447U (en) | 2019-02-28 | 2019-02-28 | A kind of backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209460447U true CN209460447U (en) | 2019-10-01 |
Family
ID=68046959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920259123.5U Active CN209460447U (en) | 2019-02-28 | 2019-02-28 | A kind of backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209460447U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110737135A (en) * | 2019-10-29 | 2020-01-31 | 维沃移动通信有限公司 | Backlight and electronic equipment |
| CN111007679A (en) * | 2019-10-31 | 2020-04-14 | 深圳市德仓科技有限公司 | Backlight module frame, backlight module and terminal |
| CN113539095A (en) * | 2021-07-15 | 2021-10-22 | 北京京东方显示技术有限公司 | Backlight module and display device |
| CN115857220A (en) * | 2021-09-24 | 2023-03-28 | 京东方科技集团股份有限公司 | Display device |
-
2019
- 2019-02-28 CN CN201920259123.5U patent/CN209460447U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110737135A (en) * | 2019-10-29 | 2020-01-31 | 维沃移动通信有限公司 | Backlight and electronic equipment |
| CN111007679A (en) * | 2019-10-31 | 2020-04-14 | 深圳市德仓科技有限公司 | Backlight module frame, backlight module and terminal |
| CN113539095A (en) * | 2021-07-15 | 2021-10-22 | 北京京东方显示技术有限公司 | Backlight module and display device |
| CN115857220A (en) * | 2021-09-24 | 2023-03-28 | 京东方科技集团股份有限公司 | Display device |
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